Did Stalin kill trotsky

yes, but not directly. He had the KGB do it. Read animal farm, and it will all make sense. Stalin is a pig called Napoleon, Trotsky is a pig called Snowball, and the KGB are dogs.

The KGB was not around until after Stalin's death. The story is that Stalin had some an agent of the NKVD - the Peoples Commissariat for Internal Affairs, a public secret police system under Stalin notorious for running the Gulags - named Ramon Mercador, from Barcelona Spain. This man claimed to have been born in Tehran under a diplomat for a father, and was a Belgian journalist named Jacques Mornard who bought a fake passport on the black market. The guy was released in prison after 20 years in 1960 and went between Cuba and the USSR (where he was apparently treated like a hero.) He was never able to get back to Spain fortunately, even though he wanted to.